Syngenetic And Diagenetic Features Of Evaporite-lutite Successions Of The Ipubi Formation, Araripe Basin, Santana Do Cariri, Ne Brazil

dc.creatordo Nascimento
dc.creatorDaniel Rodrigues
dc.creatorJr.; da Silva Filho
dc.creatorWellington Ferreira; Freire
dc.creatorJose Gervasio
dc.creatorJr.; dos Santos
dc.creatorFelipe Holanda
dc.date2016
dc.datedez
dc.date2017-11-13T13:57:59Z
dc.date2017-11-13T13:57:59Z
dc.date.accessioned2018-03-29T06:11:22Z
dc.date.available2018-03-29T06:11:22Z
dc.identifierJournal Of South American Earth Sciences. Pergamon-elsevier Science Ltd , v. 72, p. 315 - 327, 2016.
dc.identifier0895-9811
dc.identifierWOS:000389556100022
dc.identifier10.1016/j.jsames.2016.10.001
dc.identifierhttp://www.sciencedirect.com/science/article/pii/S0895981116302231
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/330162
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1367187
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionThe Ipubi Formation in the Araripe Basin (Northeast Brazil) has evaporite-lutite successions rich in gypsum, a mineral of great regional economic relevance, a highlighted stratigraphic mark, and also a natural boundary for underlying successions potentially analogous to "Pre-Salt" hydrocarbon reservoirs of the Brazilian coastal basins. In this study, syngenetic and diagenetic aspects of the Ipubi Formation at Santana do Cariri (Ceara State) were investigated by means of fades analysis, petrography, and mineralogical/chemical analyses of evaporites and shales. The results show that the contact relationship between evaporites and manly shales, without signs of subaerial exposure and laterally adjacent, was associated with shallow, calm and somewhat anoxic waterbodies, locally salt-supersaturated (brines) but under seasonal variations of water levels. This scenario could have shared place with hydrothermal phenomena in a playa lake depositional system. Regarding diagenesis, although there is evidence supporting pseudomorphic replacement of gypsum by anhydrite, the burial of the Ipubi Formation would have been limited due to the frequent occurrence of gypsum without any trace of chemical replacement. (C) 2016 Elsevier Ltd. All rights reserved.
dc.description72
dc.description315
dc.description327
dc.descriptionCoordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.languageEnglish
dc.publisherPergamon-Elsevier Science LTD
dc.publisherOxford
dc.relationJournal of South American Earth Sciences
dc.rightsfechado
dc.sourceWOS
dc.subjectEvaporites
dc.subjectGypsum
dc.subjectCeara State (brazil)
dc.subjectAraripe Basin
dc.subjectIpubi Formation
dc.titleSyngenetic And Diagenetic Features Of Evaporite-lutite Successions Of The Ipubi Formation, Araripe Basin, Santana Do Cariri, Ne Brazil
dc.typeArtículos de revistas


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